Function
Functions in Amun is like function in any other language it take parameter and return value, but with extra syntax sugger for readability
Function declaration
fun sum(x int64, y int64) int64 {
return x + y;
}
Single line function declaration
If you have a function that only return expression you can declare it in one line
fun duplicate(n int64) int64 = n * 2;
Function declaration with 0 parameter
If your function require 0 parameter you can declare it without ()
fun show_info void {
...
return;
}